+typedef enum {
+ match_commutative = 1 << 0, /**< inputs are commutative */
+ match_am_and_immediates = 1 << 1, /**< mode support AM and immediate at
+ the same time */
+ match_am = 1 << 2, /**< node supports (32bit) source AM */
+ match_8bit_am = 1 << 3, /**< node supports 8bit source AM */
+ match_16bit_am = 1 << 4, /**< node supports 16bit source AM */
+ match_immediate = 1 << 5, /**< node supports immediates */
+ match_8bit = 1 << 6, /**< supports 8 bit modes natively */
+ match_16bit = 1 << 7, /**< supports 16bit modes natively */
+ match_mode_neutral = 1 << 8, /**< 16 and 8 bit modes can be emulated
+ by 32 bit operations */
+ match_dest_am = 1 << 9,
+ match_try_am = 1 << 10, /**< only try to produce AM node, don't
+ do anything if AM isn't possible */
+} match_flags_t;
+
+typedef struct ia32_op_attr_t ia32_op_attr_t;
+struct ia32_op_attr_t {
+ match_flags_t flags;
+ unsigned latency;